package com.changgou.system.goods.service.impl;

import com.alibaba.fastjson.JSON;
import com.changgou.system.entity.util.IdWorker;
import com.changgou.system.goods.dao.BrandMapper;
import com.changgou.system.goods.dao.CategoryMapper;
import com.changgou.system.goods.dao.SkuMapper;
import com.changgou.system.goods.dao.SpuMapper;
import com.changgou.system.goods.pojo.*;
import com.changgou.system.goods.service.SpuService;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import tk.mybatis.mapper.entity.Example;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service
public class SpuServiceImpl implements SpuService {

    @Autowired
    private SpuMapper spuMapper;
    @Autowired
    private CategoryMapper categoryMapper;

    @Autowired
    private SkuMapper skuMapper;
    @Autowired
    private BrandMapper brandMapper;

    @Autowired
       IdWorker idWorker;

    /**
     * 查询全部列表
     * @return
     */
    @Override
    public List<Spu> findAll() {
        return spuMapper.selectAll();
    }

    @Override
    public Goods findGoodsById(String id) {
        Goods goods=new Goods();
        Spu spu = spuMapper.selectByPrimaryKey(id);
        goods.setSpu(spu);

        //sku list 
     Example example=new Example(Sku.class);
        Example.Criteria criteria = example.createCriteria();
      criteria.andEqualTo("spuId",id);
        List<Sku> skus = skuMapper.selectByExample(example);
     goods.setSkuList(skus);

        return goods;
    }

    /**
     * 根据ID查询
     * @param id
     * @return
     */
    @Override
    public Spu findById(String id){
        return  spuMapper.selectByPrimaryKey(id);
    }


    /**
     * 增加
     * @param spu
     */
    /*** 保存商品 SPU+SKU列表
     * * @param goods 商品组合实体类 */
    @Transactional
    @Override
    public void add(Goods goods){
        Spu spu = goods.getSpu();
        //设置分布式id
        long id = idWorker.nextId();
         spu.setId(id+"");
        //上架状态
        spu.setIsMarketable("0");
        //设置删除状态
        spu.setIsDelete("0");
        //审核状态
        spu.setStatus("0");
        spuMapper.insert(spu);


        //保存sku集合数据到数据库
        saveSkuList(goods);

    }

    /*** 保存sku列表
     * * @param goods */
   private void saveSkuList(Goods goods){
       //获取spu对象
       Spu spu = goods.getSpu();
         //当前日期
       Date date=new Date();
     //获取品牌对象
     //  Integer brandId = spu.getBrandId();
       Brand brand = brandMapper.selectByPrimaryKey(spu.getBrandId());

       //获取分类对象
       Integer category3Id = spu.getCategory3Id();
       Category category = categoryMapper.selectByPrimaryKey(category3Id);
       //获取sku集合对象
       List<Sku> skuList = goods.getSkuList();
       if(skuList !=null){
           for (Sku sku : skuList) {
               //设置sku主键ID
               long l = idWorker.nextId();
               sku.setId(toString().valueOf(l));
               //设置sku规格
               String spec = sku.getSpec();
                if(StringUtils.isEmpty(spec)){
                    sku.setSpec("{}");
                }
               //设置sku名称(商品名称 + 规格)
               String name = spu.getName();
               //将规格json字符串转换成Map
               Map<String,String> specMap = JSON.parseObject(sku.getSpec(), Map.class);
                if(specMap !=null && specMap.size()>0 ){
                    for (String value : specMap.values()) {
                        name +=" "+value;
                    }

                }
               sku.setName(name);//名称
               sku.setSpuId(spu.getId());//设置spu的ID
               sku.setCreateTime(date);//创建日期
               sku.setUpdateTime(date);//修改日期
               sku.setCategoryId(category.getId());//商品分类ID
               sku.setCategoryName(category.getName());//商品分类名称
               sku.setBrandName(brand.getName());//品牌名称
               skuMapper.insertSelective(sku);//插入sku表数据
           }
           
           
       }
       
       
   }











    /**
     * 修改
     * @param spu
     */
    @Override
    public void update(Goods goods){
        Spu spu = goods.getSpu();
        spuMapper.updateByPrimaryKey(spu);
        //先把原来的 sku都删
        Example example =new Example(Sku.class);
        Example.Criteria criteria = example.createCriteria();
        criteria.andEqualTo("spuId",spu.getId());
        skuMapper.deleteByExample(example);
        //skuList 添加回去
        saveSkuList(goods);
    }

    /**
     * 删除
     * @param id
     */
    @Override
    public void delete(String id){
        Spu spu = spuMapper.selectByPrimaryKey(id);
    //检查是否下架的商品
        if(!spu.getIsMarketable().equals("0")){
            throw new RuntimeException("必须先下架再删除！");

        }
      spu.setIsDelete("1");//删除
        spu.setStatus("0");//未审核
        spuMapper.updateByPrimaryKeySelective(spu);
       // spuMapper.deleteByPrimaryKey(id);
    }


    /**
     * 条件查询
     * @param searchMap
     * @return
     */
    @Override
    public List<Spu> findList(Map<String, Object> searchMap){
        Example example = createExample(searchMap);
        return spuMapper.selectByExample(example);
    }

    /**
     * 分页查询
     * @param page
     * @param size
     * @return
     */
    @Override
    public Page<Spu> findPage(int page, int size){
        PageHelper.startPage(page,size);
        return (Page<Spu>)spuMapper.selectAll();
    }

    /**
     * 条件+分页查询
     * @param searchMap 查询条件
     * @param page 页码
     * @param size 页大小
     * @return 分页结果
     */
    @Override
    public Page<Spu> findPage(Map<String,Object> searchMap, int page, int size){
        PageHelper.startPage(page,size);
        Example example = createExample(searchMap);
        return (Page<Spu>)spuMapper.selectByExample(example);
    }
@Transactional
    @Override
    public void audit(String id) {
    //查询spu对象
    Spu spu = spuMapper.selectByPrimaryKey(id);
     if(spu==null){
         throw new RuntimeException("当前商品不存在");
     }
    //判断当前spu是否处于删除状态
    if("1".equals(spu.getIsDelete())){

        throw new RuntimeException("当前商品处于删除状态");
    }
    //不处于删除状态,修改审核状态为1,上下架状态为1
    spu.setStatus("1");
    spu.setIsMarketable("1");
    //执行修改操作
        spuMapper.updateByPrimaryKeySelective(spu);


}
@Transactional
    @Override
    public void pull(String id) {
    //查询spu
    Spu spu = spuMapper.selectByPrimaryKey(id);
    if(spu==null){
        throw new RuntimeException("当前商品不存在");
    }
    //判断当前商品是否处于删除状态
     if("1".equals(spu.getIsDelete())){
         throw new RuntimeException("当前商品处于删除状态");

     }
    //商品处于未删除状态的话,则修改上下架状态为已下架(0)
       spu.setIsMarketable("0");
     spuMapper.updateByPrimaryKeySelective(spu);
}

    @Override
    public void put(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
       if(!spu.getStatus().equals("1")){
           throw new RuntimeException("未通过审核的商品不能上架！");

       }
       spu.setIsMarketable("1");//上架状态
       spuMapper.updateByPrimaryKeySelective(spu);
    }

    @Override
    public void restore(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        //检查是否删除的商品
         if(!spu.getIsDelete().equals("1")){
             throw new RuntimeException("此商品未删除！");

         }
         spu.setIsDelete("0");//未删除
         spu.setStatus("0");//未审核

        spuMapper.updateByPrimaryKeySelective(spu);


    }

    @Override
    public void realDelete(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        //检查是否删除的商品
        if(!spu.getIsDelete().equals("1")){
            throw new RuntimeException("此商品未删除！");
        }
        spuMapper.deleteByPrimaryKey(id);
    }

    /**
     * 构建查询对象
     * @param searchMap
     * @return
     */
    private Example createExample(Map<String, Object> searchMap){
        Example example=new Example(Spu.class);
        Example.Criteria criteria = example.createCriteria();
        if(searchMap!=null){
            // 主键
            if(searchMap.get("id")!=null && !"".equals(searchMap.get("id"))){
                criteria.andEqualTo("id",searchMap.get("id"));
           	}
            // 货号
            if(searchMap.get("sn")!=null && !"".equals(searchMap.get("sn"))){
                criteria.andEqualTo("sn",searchMap.get("sn"));
           	}
            // SPU名
            if(searchMap.get("name")!=null && !"".equals(searchMap.get("name"))){
                criteria.andLike("name","%"+searchMap.get("name")+"%");
           	}
            // 副标题
            if(searchMap.get("caption")!=null && !"".equals(searchMap.get("caption"))){
                criteria.andLike("caption","%"+searchMap.get("caption")+"%");
           	}
            // 图片
            if(searchMap.get("image")!=null && !"".equals(searchMap.get("image"))){
                criteria.andLike("image","%"+searchMap.get("image")+"%");
           	}
            // 图片列表
            if(searchMap.get("images")!=null && !"".equals(searchMap.get("images"))){
                criteria.andLike("images","%"+searchMap.get("images")+"%");
           	}
            // 售后服务
            if(searchMap.get("saleService")!=null && !"".equals(searchMap.get("saleService"))){
                criteria.andLike("saleService","%"+searchMap.get("saleService")+"%");
           	}
            // 介绍
            if(searchMap.get("introduction")!=null && !"".equals(searchMap.get("introduction"))){
                criteria.andLike("introduction","%"+searchMap.get("introduction")+"%");
           	}
            // 规格列表
            if(searchMap.get("specItems")!=null && !"".equals(searchMap.get("specItems"))){
                criteria.andLike("specItems","%"+searchMap.get("specItems")+"%");
           	}
            // 参数列表
            if(searchMap.get("paraItems")!=null && !"".equals(searchMap.get("paraItems"))){
                criteria.andLike("paraItems","%"+searchMap.get("paraItems")+"%");
           	}
            // 是否上架
            if(searchMap.get("isMarketable")!=null && !"".equals(searchMap.get("isMarketable"))){
                criteria.andEqualTo("isMarketable",searchMap.get("isMarketable"));
           	}
            // 是否启用规格
            if(searchMap.get("isEnableSpec")!=null && !"".equals(searchMap.get("isEnableSpec"))){
                criteria.andEqualTo("isEnableSpec", searchMap.get("isEnableSpec"));
           	}
            // 是否删除
            if(searchMap.get("isDelete")!=null && !"".equals(searchMap.get("isDelete"))){
                criteria.andEqualTo("isDelete",searchMap.get("isDelete"));
           	}
            // 审核状态
            if(searchMap.get("status")!=null && !"".equals(searchMap.get("status"))){
                criteria.andEqualTo("status",searchMap.get("status"));
           	}

            // 品牌ID
            if(searchMap.get("brandId")!=null ){
                criteria.andEqualTo("brandId",searchMap.get("brandId"));
            }
            // 一级分类
            if(searchMap.get("category1Id")!=null ){
                criteria.andEqualTo("category1Id",searchMap.get("category1Id"));
            }
            // 二级分类
            if(searchMap.get("category2Id")!=null ){
                criteria.andEqualTo("category2Id",searchMap.get("category2Id"));
            }
            // 三级分类
            if(searchMap.get("category3Id")!=null ){
                criteria.andEqualTo("category3Id",searchMap.get("category3Id"));
            }
            // 模板ID
            if(searchMap.get("templateId")!=null ){
                criteria.andEqualTo("templateId",searchMap.get("templateId"));
            }
            // 运费模板id
            if(searchMap.get("freightId")!=null ){
                criteria.andEqualTo("freightId",searchMap.get("freightId"));
            }
            // 销量
            if(searchMap.get("saleNum")!=null ){
                criteria.andEqualTo("saleNum",searchMap.get("saleNum"));
            }
            // 评论数
            if(searchMap.get("commentNum")!=null ){
                criteria.andEqualTo("commentNum",searchMap.get("commentNum"));
            }

        }
        return example;
    }

}
